/* Copyright (c) 2001-2004, The HSQL Development Group
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of the HSQL Development Group nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG, 
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


package org.hsqldb.lib;

/**
 * Collection of static helper methods for converting types into boolean;
 *
 * @author: Nitin Chauhan
 * @version 1.7.2
 */
public final class BooleanConverter {

    private static final java.math.BigDecimal BIGDECIMAL_0 =
        new java.math.BigDecimal("0");

    public static Boolean getBoolean(Boolean o) {
        return o;
    }

    public static Boolean getBoolean(Double o) {
        return o.doubleValue() == 0.0 ? Boolean.FALSE
                                      : Boolean.TRUE;
    }

    public static Boolean getBoolean(Integer o) {
        return ((Number) o).longValue() == 0L ? Boolean.FALSE
                                              : Boolean.TRUE;
    }

    public static Boolean getBoolean(Long o) {
        return ((Number) o).longValue() == 0L ? Boolean.FALSE
                                              : Boolean.TRUE;
    }

    public static Boolean getBoolean(String o) {
        return o != null && o.toLowerCase().equals("true") ? Boolean.TRUE
                                                           : Boolean.FALSE;
    }

    public static Boolean getBoolean(java.math.BigDecimal o) {
        return o.compareTo(BIGDECIMAL_0) == 0 ? Boolean.FALSE
                                              : Boolean.TRUE;
    }
}
